The Claim
In untrained individuals, eight weeks of high-volume resistance training increases muscle thickness at multiple sites in the upper and lower body, whereas performing only the 1RM test does not result in significant changes in muscle size, indicating that a minimum volume threshold is required to induce hypertrophy.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In people who have not trained before, eight weeks of high-volume weight lifting increases muscle thickness in the arms, legs, and other body areas, but doing only a one-repetition maximum strength test does not change muscle size.
See the scientific wording
In untrained individuals, eight weeks of resistance training with high volume leads to measurable increases in muscle thickness at multiple sites in the upper and lower body, while practicing only the 1RM test produces no significant change in muscle size, indicating that a minimum volume threshold is required to induce hypertrophy.
When muscles are stretched and contracted repeatedly under load, the physical force on muscle fibers activates signals inside the cells that tell them to build more protein, making the fibers thicker over time. Doing the same lift just once doesn't create enough repeated force to trigger this process.
What the research says
1 studyStudy: Practicing the Test Produces Strength Equivalent to Higher Volume Training
Just lifting your maximum weight once per session makes you stronger, but doesn’t make your muscles bigger. To grow muscles, you need to do multiple sets of repetitions over time — like the study showed.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.